Zinc Sources in California Urban RunoffPrepared by TDC Environmental, LLC, February 2015
This report was prepared for the California Stormwater Quality Association (CASQA) under the supervision of CASQA’s Watershed Management & Impaired Waters Subcommittee. It is a component of CASQA’s Source Control Initiative which seeks to address stormwater and urban runoff pollutants at their sources.

The Soil & Water Connection – A Watershed Manager’s Guide To OrganicsComposting Council – Research & Education Foundation

Effects of Water Hardness, Alkalinity, and Dissolved Organic Carbon on the
Toxicity of Copper To the Lateral Line of Developing FishTiffany Linbo, David Baldwin, Jenifer McIntyre, and Nathaniel Scholz
This technical research paper was accepted in 7 January 2009 by NOAA and the University of Washington. This study investigates the influence of different water chemistry parameters on larval zebrafish. These parameters are shown in a set of tables – Copper Toxicity vs Water Hardness, Sodium, and Dissolved Organic Carbon (Figure 1).

5,000 gallon Home Rainwater Collection SystemJeffrey Pettey
When extensively remodeling my home, I decided to use my expertise to install a green water system that will supply the toilets, the laundry washers, and the hose bids. The collection tank is under the house with 5 levels of passive separations before entering the main holding tank. If the tank runs dry (in late August, early September), the city water supply automatically steps in. This process has worked flawlessly for over 5 years.